The NW coast of Brittany, which comprises the NW part of France, is
encumbered with dangers. Ile d’Ouessant, in the N part, lies 10 miles
offshore with numerous islands and dangers extending SE between it and
the mainland. Chaussee de Sein, in the S part, is a dangerous reef ...

The Atlantic Ocean is the second-largest of the world's oceanic divisions; with a total area of about 106.4 million square kilometres (41.1 million square miles), it covers approximately one-fifth of the Earth's surface.The Atlantic Ocean has irregular coasts indented by numerous ...